Grease-cup.



B. HANSON.

l GREASE CUP. APPLIOATIOHTILED SBT. 6, 191.0.

Patented Feb. 215 i 913.

UNITED STATES ralentir carica.

BENGT M. W. HANSON, OFl HARTFORD, CONNECTICUT.

GREASE-CUP.

To all whom t may concern Be it known that I, BENGT M. W. HAN- soN, a citizen of the United States, residing at Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful .Improvements in. Grease- Cups, of which the following is a specilication.

This invention relates to what I shall, forconvenience, terma grease-cup as it is primarily intended for containing fjease although it is conceivable that it mw receive some other lubricant or substance.

In devices of the character set forth there is usually a base member and a cap member and the latter is generally though not always necessarily as in the present case, threaded onto thebase member. When the cup is used in connections where there is considerable jar as in the case of an automobile and various kinds of engines and like apparatus, such j ar or vibration shakes loosethe cap member and it is a very common incident when this oc'curs in the case ofan automobile the cap is lost. u

It is one of the more important features of the invention to provide simple and ef fective means to positively lock the cap member in place and against accidental turn- .ing oif although the const-ruction is such that the capA member may be freely turned by hand to feed the grease, replenish the cup with such substance or for any -other pur- PQSQ- There are several ways of carrying my invention into effect and in the drawings accompanying and forming part of the present specication I have represented in detail one of .these and so that those skilled in the art can properly practise the invention I will set forth fully this particular embodiment of my invention in the following description while the novelty-of the invention will be included in the claims succeeding said description. From the observation just made it w1ll be clear that I do not restrict myself to such disclosure as I may depart radically therefrom within the spirit of my invention as expressed in said claims.

Referring to'said drawings, Figure 1 is Specication of Letters Patent.'

Application filed September 6, 1910.

Patented Feb. 25;, 1913.

serial No. 580,430.

an elevation of a grease cup including my invention. Fig. 2 is aJ vertical sectional view of the same. Fig. 3 is a top plan view of the base member of the cup. Fig. 4 is a section on the line et-4 of Fig. l.

Like characters refer to like parts throughout the several figures.

As will be inferred from what I have already stated the cup involves a base member and a cap member, denoted respectively by 2 and 3, the base member being usually connected directly with the part tobe lubricated and it may be provided for this purpose with an externally-threaded shank t which is made hollow or tubular to' act as aduct for conveying the grease from the basemember or cup proper of the devicey said base member having a hole in its bottom for the passage of the grease into said shank 4. The cap `member 3 is threaded onto the base member 2 and owingto this relation the turning of the ca member to the right, in the present case, e ects the feed of the after.

In the hollow base member 2 is shown a plunger 5 which constitutes an effective positive feed device and the external shape .of which agrees with the internal shape of the |base member Q. Said plunger therefore may as shown "consist of a disk closely tting and sliding in the base member and having an upturned annular guide Harige 6 at the margin thereof. The plunger 5 is preferably connected with the cap member 3 grease as will be pointed out hereinto the top of the cap member 3 and to the plunger 5 practically .as shown although there are naturally other ways of connecting the parts.

It will be assumed that there is ai mass of grease in the cup between the plunger 5 and the bottom of the base member 2. It follows therefore that when the cap member 3 is turned to the right the plunger will Aforce this grease from the base member 2 through the outlet therein to which I have hereinbefore alluded .and through the shank 4 to lubricate the part which requires lubrication. There may be cases where the threaded connectionbetween the members 2 and 3 is a left and not a right' one and in such an ated with the cap member 3 as l will herein-l after describe. The same offices performed by these locking' shoulders or catch portions 9, however, can be secured in other ways within the scope of my invention, as can the resilient locking means inv connection with the cap member 3. Said cap member 3 is illustrated having near its top the complemental or mating slots l() the stock between these slots comprising necks l1v for connect ing the superposed portions of the cap member 9. llt this point l might remark that the upper portion of the cap member 3 is milled or lfnurled to facilitate vits being turned. @wing to the presence of these two slots that part of the cap member 3 immediately below the slots is made resilient, yieldable 'orspringyand the two diametrically opposite yieldable portions act as the detent means to which l have referred, to prevent accidental turning oni ofthe cap member and as a matter of fact these also prevent accidental feed movement of the cap memlt will be understood that the threads on the exterior" of the base member 2 extend across the flat faces 8 'and also across the cam portions 9, 'the thread being practically unbroken or uninterrupted from end to end thereof or in the present case practically from the top to the bottom of the base member. The threads in the cap member 3 are also substantially continuous from ,top to bottom thereof interiorly of the same. I say substantially as the threads in the cap member 8 do not cross the slots 1.0. @wing to this construct-ion there is at a'll times a feed connection between the two principal members 2 and 3.

The resilient portions 12 of the cap member closely embrace or hug opposite fiattened faces 8 of the base member. vThis fact together with the presence of the shoulders 9 effectually preventing forward or backn ward accidental movement except to a limited extent. lt is a fact that the cap member may oscillate or vibrate back and forth but such vibration is exceedingly small and instead of being disadvantageous is rather Lacasse the contrary. The cap member 3 opposite the flattened faces 8 will itself be flattened somewhat owing to the cross sectional elongation of the cap member the elongation be- Y ing alongan axis intersecting the two necks or connecting portions ll as shown invliig.

l which is somewhat diagrammatic. y cap member 8 may be easily turned by hand to effect throliglrthe plunger 5 or otherwise the feed of the grease and as the resilient portions ride alongI the rises of the eccentric portions 9 the cap member will be flirt-hery elongated. in cross section the maximum elongation occurring when the said resilient portions are .at the highest parts of the eccentric portions 9. Beyond this point the resilient portions will ride down the eccentric portions 9 the said eccentric portions 9 and resilient portions jointly acting to prevent accidental turning` movement of the cap member or an undue amount thereof. The resilient portions practically ride over and then snap down said eccentric por tions 9.

1What l claim is: y

l. l grease cup comprising a base member, and a cap member fitted thereto, one of said members having an eccentric surface and the other having a datent cooperative with the eccentric surface to limit'the motion'of the cap member. Y

2. A grease cup comprisingP a. base member and a cap member threaded thereonto one of said members having shouldered and eccentric portions on its threaded surface and the other having" a detent cooperative directly with the shouldered portion to limit the turning movement of said cap member.

d ti t sev 3. A `grease cup comprising an externally threaded base member provided on its threaded surface with a plurality of approximately attened faces and aA cam face connectingr said flattened faces, and a cap member threaded onto said base member and provided with a springy portion to engage the flattened and cam faces as said cap member is turned. l

4. A grease cup comprising a base 'member and a cap member threaded onto said base member the base member having a plurality of flattened faces and connecting' cam faces on the threaded surface 'thereof and the threaded portion of the cap member having substantially diametrically opposite slots to producespringy portions which directly engage the threaded surface of the base member.

5. A grease cup comprising a base member and a cap member in threaded connection therewith, one ofthe members being slotted to form a springy portion and said springy portion engaging the threaded portion of the other member, Said threaded p0rt-ion having stop means engageable by said springy portion.

G. A grease cup comprising a base member and a cap member fitted thereto, the Cap member having' substantially dametrically opposite elongated, cireumferentially extending slots te thereby produce opposite Springy portions which yieldingly engage the base member, said base member being 10 externally of polygonal form in Cross section.

In testimony whereof I ahx my signature in presence of t-Wo Witnesses.

BENGT M. W'. HANSGN. lVitnesses NV. M. STORES, LILLMN E. JONES. 

